Improvement in field-rollers



' G. DUNHAM.

Land-Roller.

Patented Octr 20, 1863.

' NJETERB, FHDTD-LITNOGRAPHER. WASHINGTDPLJ} D,

UNIT D STATES PATENT OFFICE.

\VILLIAM HESTON,

OF SAME PLACE.

IMPROVEMENT IN F-l ELD-ROLLERS.

Specification forming part of Letters Patent No. 10,380, dated October20, 1863.

Bedford, in the county of Ouyahoga and State of Ohio, have invented anew and Improved 'Roller for Rolling Land; and I do hereby declare thatthe following is a full, clear, and exact description of the same,reference being bad to they accompanying drawings, making a part of thisspecification, in which- Figure 1 is a side sectional view of myinvention,taken in the linewaz; Fig.2,afront view of the same.

Similar letters of reference indicate corresponding parts in the twofigures.

The object of this invention is to obtain a roller for rolling land,which will conform to the irregularities of the surface over which itpasses, and thereby perform its work in amore thorough manner than thosepreviously constructed.

To this end the invention consists in arranging three rollers onseparate or independent shafts or axes in such a manner that therollers, as the machine is drawn along, will be allowed to adjustthemselves to the inequalities of the surface of ground.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describeit.

A represents a box, of rectangular form, which has a draft-pole, B,attached to it and two pendants, a a, at each side.

0 O are two rectangular frames, in each of which a roller, D, is placedand allowed to rotate freely. These frames are fitted one between thetwo pendants a a, at each side of the box, and the frames are connectedto the pendants by pivots or pins 1), which pass into the centers of thefront and back cross-pieces of'the frames 0.

The draft-pole B extends along underneath the box A, and projects beyondits back part a certain distance to admit of being connected I by auniversaljoint, E, to a tongue, 1*, on which a box, G, is placed, thelatter having a pendent frame, 0, projecting down from it, one near eachend, and in which the ends of the shaft cl of a roller, H, are fitted.The rollers H D D are all of the same diameter, and may be constructedin any proper manner of either iron or wood, the roller H being in linewith the center of the space between the rollers D D. Any kindof auniversaljoint, E, may also be employed for connecting the draft-pole Band tongue F.

The boxes A G are for the purpose of loadin g the machine to increasethe crushing-power of the rollers as may be desired.

To the box A an inclined bar, I,is attached, on which a drivers seat, J,is secured.

From the above description it will be seen that the three rollers H I) Dhave separate or independent adjusting movements, so that each can passinto hollows over rolling elevations and inclined surfaces independentlyof the others, and the ground therefore,if uneven, may be thoroughlyrolled-a resultnotattained by any ordinary roller in use. In lieu ofboxes AG, suitableframes may be used; but the boxes are preferable, asthey form a receptacle for stones, in order to load the rollers whennecessary.

Having thus'described my invention, what I claim as new,and desire tosecure by Letters Patent, is

The rollers D D, fitted in frames 0 0, attached to the box A or asuitable frame, as shown, in combination with the roller H, attached toa box, G, or a suitable frame, which is connected to' the frame or box Aof the rollers D by a universaljoint, E, all arranged as and for thepurpose set forth.

CHESTER DUN HAM. Witnesses L. D. BENEDICT, JAMES WALLACE.

